fixes #119: link associated streams to artist tags

lib/philomena/tags/tag.ex

@@ -2,6 +2,7 @@ defmodule Philomena.Tags.Tag do
   use Ecto.Schema
   import Ecto.Changeset
 
+  alias Philomena.Channels.Channel
   alias Philomena.DnpEntries.DnpEntry
   alias Philomena.UserLinks.UserLink
   alias Philomena.Tags.Tag
@@ -46,6 +47,8 @@ defmodule Philomena.Tags.Tag do
     belongs_to :aliased_tag, Tag, source: :aliased_tag_id
     has_many :aliases, Tag, foreign_key: :aliased_tag_id
 
+    has_many :channels, Channel, foreign_key: :associated_artist_tag_id
+
     many_to_many :implied_tags, Tag,
       join_through: "tags_implied_tags",
       join_keys: [tag_id: :id, implied_tag_id: :id],

lib/philomena_web/controllers/tag_controller.ex

@@ -20,6 +20,7 @@ defmodule PhilomenaWeb.TagController do
       :implied_tags,
       :implied_by_tags,
       :dnp_entries,
+      :channels,
       public_links: :user,
       hidden_links: :user
     ]

lib/philomena_web/image_loader.ex

@@ -122,6 +122,7 @@ defmodule PhilomenaWeb.ImageLoader do
       :implied_tags,
       :implied_by_tags,
       :dnp_entries,
+      :channels,
       public_links: :user,
       hidden_links: :user
     ])

lib/philomena_web/templates/tag/_tag_info_row.html.slime

@@ -50,7 +50,7 @@
         br
 
 
-    = if present?(@tag.public_links) or present?(@tag.implied_by_tags) or present?(@tag.description) do
+    = if present?(@tag.public_links) or present?(@tag.channels) or present?(@tag.implied_by_tags) or present?(@tag.description) do
       br
       = link "Toggle detailed information", to: "#", data: [click_toggle: ".tag-info__more"]
 
@@ -74,6 +74,11 @@
 
           br
 
+        = if Enum.any?(@tag.channels) do
+          strong> Associated streams:
+          = for channel <- @tag.channels do
+            => link channel.title, to: Routes.channel_path(@conn, :show, channel)
+
         = if Enum.any?(@tag.implied_by_tags) do
           input.toggle-box id="implied_by" type="checkbox"
           label for="implied_by"